Surface bolt



Dec. 2, 1952 D. H. KEELER SURFACE BOLT Filed Jan. 28, 1950 Patented Dec. 2, 1952 EURFACE BOLT Dwight H. Keeler, East Haven, Conn assignor to The H, B. Ives, Company, New Haven, Conn, a corporation of Connecticut Application January 28, 1950, Serial No. 140,976,

3 Claims.

This invention relates to surface bolts and more particularly to a sliding bolt adapted to be applied to the outer surface of a closure member, such as a door or window, the bolt being adapted to be moved so that its end portion projects over the edge of the closure member to which it is to be applied, into a keeper or strike plate so as to maintain the closure member in closed position.

A bolt of this character is commonly mounted in guides which are secured to the surface of the closure member, the bolt being slidable with respect to the guides. It is desirable that. means be provided so that while the bolt may be readily moved from one position to another, it will nevertheless remain in the position to which it is moved even when mounted to move in a vertical direction, so that the bolt will remain either in its projected position or in its retracted position when moved to these positions.

Also as such a bolt is mounted upon the surface of the door or other closure member, it is desirable that it be of ornamental appearance, and to this end it is advantageous to provide guides or attaching members of such construction that they may be located at the rear of the body of the bolt. Also it is desirable to provide means for limiting the movement of the bolt with respect to the guides so as to assure that the bolt will not be entirely removed from the guides, particularly when retracted, and to this end definite stops are provided in the present structure. to limit movement of the bolt with respect to one of the guides.

One object of the present invention is to provide a surface belt of simple and inexpensive construction which will at the same time be of ornamental appearance and economical to manufacture.

A further object of the invention is to provide a surface bolt and guidesor attaching means therefor such that the attaching means will be located at the rear of the bolt, and stops or abutment members will be provided to limit the sliding movement of the bolt with respect to the guides when the bolt is installed upon a door or other closure member.

Still another object of the invention is to provide frictional means between the guides and the bolt so that the bolt will remain in the position to which it is moved and to employ one of these frictional members as an abutment to limit movement of the bolt in one direction with respect to the guide.

To these and other ends the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is a front elevational view of a surface bolt applied to the face of a closure member such as a door;

Fig. 2 is a sectional view on line 22 of Fig. 1;

Fig. 3 is a perspective view of .the stop spring employed between the bolt and one of the guides; and

Fig. 4 is a transverse sectional view on line i-- i of Fig. 1.

To illustrate a preferred embodiment of my invention, I have shown in the drawings a closure member such as a door I'll, the door being mounted in the frame i l. The frame may be recessed at E2, as shown in Fig. 2, vto permit entrance of the end of the bolt in this recess, and below the recess a keeper or strike plate I3 is secured to the frame, this member having an opening 14 in which the projecting end of thebolt may be received.

The body of the bolt is shown at I5 and, as. illustrated in Fig. 4, the bolt body is hollow and substantially channel-shaped in cross section, with its edges turned inwardly to provide op-- positely facing flanges it. It will be understood;

that .the bolt may be of the size and length re-- quired for the particular use to. which it is to be put.

The bolt may be secured to. the door by two or more securing members or guide members, shown more particularly in Figs. 1 and 4. Each of these members comprises a base portion I! adapted to be secured to the surface of the door by screws 18 and an outwardly-projecting centrally-disposed rib L9. This rib is provided with an enlarged head 28 having an arcuate outer surface so as to fit fairly snugly the interior of the bolt. Between the enlarged head 20 and the base I? are provided channels 2| which slidably receive the flanges It upon the bolt. It is understood that the bolt as originally made is open at its ends so that the guides or securing members may be slidably assembled with the bolt, as shown in Figs. 2 and 4, in order that when the guides are attached to the door the bolt will be slidably mounted thereon.

The upper surface of the head 20 of each of the guides is provided with a groove or channel 22 and a bowed spring 23 is disposed in the channel of one guide (the upper one as shown in Fig. 2), which spring exerts friction upon the bolt tending to hold the latter in any position to which it is moved, but allowing it to be slidably moved with respect to the guide when desired.

Adjacent the inner end of the bolt a knob 24 is secured thereto which may be grasped by the operator to move the bolt to projected and retracted positions. A spring 25, shown more especially in Fig. 3, is secured to the inner end portion or stem 26 of the knob 24. This spring is provided with an eye 21, through which the stem 26 extends, and the stem is riveted over at 28 so as to secure the spring in place and also secure the knob to the body of the bolt I5.

As shown more especially in Fig. 2, this spring is of sufiicient length to extend through the groove 22 of the adjacent guide or attaching member, and at its free end is bent upon itself, as shown at 29, so as to provide a stop or abutment member which will not pass through the groove 22, but will engage the head 20 of the guide and act as a stop to limit the movement of the bolt with respect to the guide in one direction, that is, in a downward direction as shown in the drawings.

Also the body of the spring 25 is slightly bowed as shown in Figs. 2 and 3, so that, while its ends engage the inner surface of the bolt IS, the body portion engages the bottom of the groove 22 and serves to frictionally hold the bolt against movement with respect to the guide or attaching member.

As shown in Figs. 1 and 2 of the drawings, the door is closed and the bolt is in its projected position with its upper end portion engaged with the keeper l3, so as to maintain the door in closed position. The bolt may be moved to retracted position by merely grasping the knob 24 and slidably moving the bolt with respect to the attaching guides. By exerting a downward force upon the knob 24, the bolt may be moved to this retracted position, as shown in dotted lines in Fig. 2. In this position the abutment or stop member 29 on the spring 25 engages the head 20 of the adjacent attaching member and acts as a positive stop to limit the movement of the bolt in this direction.

It may sometimes occur that when the door is in open position, the bolt might be moved too far in the opposite direction, or in the direc tion to protract it. Such movement is limited by the engagement of the riveted portion 28 of the stem 26 of the knob 24 with a portion of the adjacent guide. It will be seen, therefore, that when the parts are assembled, as shown in Fig. 2, the movement of the bolt with respect to the lower guide is limited in both directions, and that the limiting members are disposed within the channel of the bolt so as not to be exposed when the bolt is applied to the door. Moreover, the spring 25 which acts as one of the limiting members also acts to frictionally hold the bolt in any position to which it is moved.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the claims.

What I claim is:

1. A surface bolt comprising a bolt body channeled at its rear side, a guide member having a head portion entering said channel to mount the bolt for sliding movement, and a spring extended between said head and the bolt body to exert friction thereon, said spring being fixed at one end to said bolt and having an abutment at the other end to engage the head of the guide member and the intermediate portion of the spring frictionally engaging the guide member to hold the bolt in adjusted position.

2. A surface bolt comprising a bolt body channeled at its rear side, a guide member having a head portion entering said channel to mount the bolt for sliding movement, said head having a groove therein facing the bolt body, and a spring -member secured at one end to the bolt and extending through said groove beyond said guide member, said spring having an abutment on its extended end to engage the guide member and act as a stop to limit relative movement of the bolt and guide member and the body of the spring being frictionally engaged with the wall of the groove in the guide member.

3. A surface bolt comprising a bolt body channeled at its rear side, a guide member having a head portion received in the channel to mount the bolt for sliding movement, said head having a groove therein facing the bolt body, a knob secured to the bolt body and having a stem extending through the wall thereof into the channel, a spring secured at one end to the stem of the knob within the channel of the bolt and extending through said groove beyond said guide member, said spring having an abutment on its extended end to engage the guide member and act as a stop to limit relative movement of the bolt with respect to the guide member in one direction, and the stem of said knob limiting relative movement of the bolt and guide member in the other direc tion.

DWIGHT H. KEELER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 777,686 Moore et al Dec. 2-0, 1904 1,653,015 Koelln Dec. 20, 1927 2,100,622 Adams Nov. 30, 1937 FOREIGN PATENTS Number Country Date 428,494 Great Britain May 14, 1935 512,929 Germany July 30, 1929 

